What should I do with the holes circled in red. Plug them? And does the vacuum advance look like it is done correctly? I also installed a new radiator and hoses. When i started the truck it began to leak coolant out of the white part on the temperature switch mechanism cirlcled in yellow. I need to know the correct name for this so i can purchase a new one.

 

The hole in your first pic is where my PCV valve hooks up to and yes the vacuum advance is right. I'm running a 32/36 in mine, had it for about 2 years.

 

the pic on the left there should have been a barb fitting for it, the hose that goes to it goes to the pcv valve (back hose connection on the valve cover.)

Your vacuum line to the distributor is correct assuming the other end goes to the ported carb connection.

The valve (right photo) is the heater valve. should be part number 87240-89117

 

thanks buddy